Thortech Thunderbolt Plus 800 W Review

Name: Thortech Thunderbolt Plus 800 W
Brand: Thortech

crmaris

on Aug 23rd, 2011,

in Power Supplies.

Manufacturer: Thortech

Value & Conclusion »

Ripple Measurements

In the following table you will find the ripple levels that we measured on the main rails of TTB800G. According to ATX specification the limits are 120 mV (+12V) and 50 mV (5V, 3.3V and 5VSB).

Ripple Measurements Thortech TTB800G
Test	12 V	5 V	3.3 V	5VSB	Pass/Fail
20% Load	7.4 mV	6.8 mV	6.0 mV	3.0 mV	Pass
40% Load	10.0 mV	7.6 mV	6.6 mV	5.2 mV	Pass
50% Load	12.6 mV	8.0 mV	6.8 mV	6.8 mV	Pass
60% Load	15.6 mV	8.8 mV	7.6 mV	8.2 mV	Pass
80% Load	24.8 mV	10.8 mV	9.0 mV	10.0 mV	Pass
100% Load	43.8 mV	15.6 mV	13.2 mV	12.8 mV	Pass
Crossload 1	10.0 mV	9.8 mV	7.0 mV	4.0 mV	Pass
Crossload 2	44.2 mV	15.2 mV	15.0 mV	11.8 mV	Pass

Ripple/noise suppression overall is good, however we noticed a big increase of +12V ripple between 80% and 100% load. This shows that the 800W of the maximum stated capacity are close to the actual limits of this platform.

Ripple at Full Load

In the following oscilloscope screenshots you can see the AC ripple and noise that the main rails registered (+12V, 5V, 3.3V and 5VSB). The bigger the fluctuations on the oscilloscope's screen the bigger the ripple/noise. For all measurements we set 0.02 V/Div (each vertical division/box equals to 0.02V) as standard.